Ultrasound-accelerated selective oxidation of primary aromatic amines to azoxy derivatives with trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxolane catalyzed by Preyssler acid-mediated nano-TiO2

作者：Azarifar Davood^*; Khatami Seyed Mola; Najminejad Zohreh

来源：Journal of the Iranian Chemical Society, 2014, 11(2): 587-592.

DOI：10.1007/s13738-013-0328-z

• Trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxolane
• Nano-TiO2
• Preyssler-type heteropolyacid
• Aromatic amine
• Azoxy derivative
• Oxidation

Preyssler-type heteropolyacid supported on TiO2 nanoparticles has been explored as an efficient catalyst in selective oxidation of primary aromatic amines to azoxy derivatives using trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxolane as oxidant. The reactions proceeded smoothly under mild and green ultrasound-accelerated conditions to afford the products in high yields. The catalyst recovered from the reaction mixture exhibits long-term stability with no significant drop in its catalytic activity.
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• 出版日期2014-4